diff --git a/metrics-util/Cargo.toml b/metrics-util/Cargo.toml
index 7553bae9..4939c386 100644
--- a/metrics-util/Cargo.toml
+++ b/metrics-util/Cargo.toml
@@ -79,7 +79,7 @@ tracing-subscriber = { version = "0.3", default-features = false, features = ["f
 crossbeam-queue = "0.3"
 quickcheck = "1"
 quickcheck_macros = "1"
-mockall = "0.11"
+mockall = "0.12"
 
 [features]
 handles = ["crossbeam-epoch", "crossbeam-utils"]